6-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 UNDER

SECURITIES EXCHANGE ACT OF 1934

For the month of April, 2018

(Commission File No. 001-34429),

PAMPA ENERGIA S.A.
(PAMPA ENERGY INC.)

Argentina

(Jurisdiction of incorporation or organization)

Maipú 1
C1084ABA
City of Buenos Aires
Argentina

(Address of principal executive offices)

(Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.)

Form 20-F ___X___ Form 40-F ______

(Indicate by check mark whether the registrant by furnishing the
information contained in this form is also thereby furnishing the
information to the Commission pursuant to Rule 12g3-2(b) under
the Securities Exchange Act of 1934.)

Yes ______ No ___X___

(If "Yes" is marked, indicate below the file number assigned to the
registrant in connection with Rule 12g3-2(b): 82- .)

This Form 6-K for Pampa Energía S.A. (“Pampa” or the “Company”) contains:

Exhibit 1:  Letter dated April 4, 2018, addressed to Comisión Nacional de Valores and Bolsas y Mercados Argentinos S.A., entitled “Sale of Oil Assets from Exploration & Production Segment”

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: April 4, 2018

Pampa Energía S.A.
By:	/s/ Marcos Marcelo Mindlin
	Name: Marcos Marcelo Mindlin Title:   Chief Executive Officer

FORWARD-LOOKING STATEMENTS

This press release may contain forward-looking statements. These statements are statements that are not historical facts, and are based on management's current view and estimates offuture economic circumstances, industry conditions, company performance and financial results. The words "anticipates", "believes", "estimates", "expects", "plans" and similar expressions, as they relate to the company, are intended to identify forward-looking statements. Statements regarding the declaration or payment of dividends, the implementation of principal operating and financing strategies and capital expenditure plans, the direction of future operations and the factors or trends affecting financial condition, liquidity or results of operations are examples of forward-looking statements. Such statements reflect the current views of management and are subject to a number of risks and uncertainties. There is no guarantee that the expected events, trends or results will a ctually occur. The statements are based on many assumptions and factors, including general economic and market conditions, industry conditions, and operating factors. Any changes in such assumptions or factors could cause actual results to differ materially from current expectations.

EX-1

 

Buenos Aires, April 4th, 2018

Comisión Nacional de Valores

Bolsas y Mercados Argentinos S.A.

Ref.: Sale of Oil Assets from Exploration & Production Segment

I am writing to you in my capacity as Head of Market Relations of Pampa Energía S.A. (the “Company” or “Pampa”) in order to comply with section 2, Chapter I Title XII (T.O. 2013) of the Comision Nacional de Valores regulations, following the Relevant Event disclosed on January 16^th, 2018.

To that end, we inform that,  given the fulfillment of all the conditions precedent that the sale was subject to, today took place the closing of the sale to Vista Oil & Gas S.A.B. de C.V. and/or its subsidiaries (‘Vista’) of Pampa’s direct ownership of 58.88% at Petrolera Entre Lomas S.A. (‘Pelsa’), and its direct stakes at Entre Lomas, Bajada del Palo, Agua Amarga, Medanito S.E. and Jagüel de los Machos blocks (the “Transaction”).

The sale price of the Transaction, after the agreed adjustments were applied, amounted to US$398,576,630, and was fully settled by Vista today. However, the selling price is still subject to certain adjustments in relation to the sale of the direct participations at the blocks.

Finally, we would also like to inform that, in relation with section 23, (a), paragraph 9 of the ByMA Listing Rules, due to the fact that the Transaction’s price is still subject to certain adjustments, it is currently not possible to calculate its economic reporting result and therefore, it will be disclosed in the Company’s next Financial Statements.

Sincerely,

Victoria Hitce

Head of Market Relations